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Finding the Fourth Proportional to 5,990.60, 8,975.44 and 3,907.28

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Solution

The fourth proportional to 5,990.60, 8,975.44 and 3,907.28 is: 5,854.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,990.60 : 8,975.44 = 3,907.28 : x
  2. Step 2: Convert to fraction form
    5,990.60/8,975.44 = 3,907.28/x
  3. Step 3: Cross multiply
    5,990.60x = 8,975.44 × 3,907.28
  4. Step 4: Simplify right side
    5,990.60x = 35,069,557.20
  5. Step 5: Solve for x
    x = 35,069,557.20/5,990.60
  6. Step 6: Final answer
    x = 5,854.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.